{
  "annotation_id": "b9b36c48-648a-4205-8108-0610cda80641",
  "date_created": "2026-03-02T18:01:14.621000Z",
  "date_modified": "2026-03-02T18:01:14.621000Z",
  "file_hash": "3364c5f0d41b3873e15c738d8a516253f61414af9c4862209fa6ddf4227f895d",
  "private": false,
  "record": {
    "abstract": "The web of relations linking technological innovation can be fairly described\nin terms of patent citations. The resulting patent citation network provides a\npicture of the large-scale organization of innovations and its time evolution.\nHere we study the patterns of change of patents registered by the US Patent and\nTrademark Office (USPTO). We show that the scaling behavior exhibited by this\nnetwork is consistent with a preferential attachment mechanism together with a\nWeibull-shaped aging term. Such attachment kernel is shared by scientific\ncitation networks, thus indicating an universal type of mechanism linking ideas\nand designs and their evolution. The implications for evolutionary theory of\ninnovation are discussed.",
    "arxiv_id": "physics/0612030",
    "authors": [
      "Sergi Valverde",
      "Ricard V. Sol\u00e9",
      "Mark A. Bedau",
      "Norman H. Packard"
    ],
    "categories": [
      "physics.soc-ph"
    ],
    "doi": "10.1103/PhysRevE.76.056118",
    "title": "Topology and Evolution of Technology Innovation Networks",
    "url": "https://arxiv.org/abs/physics/0612030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6445c11d-97dc-42e4-a904-8de50e52f88c",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}